What is t-icd?

How does an implantable cardioverter-defibrillator (ICD) work?

An ICD is always checking your heart rate and rhythm. If the ICD detects a life-threatening, rapid heart rhythm, it tries to slow the rhythm back to normal using electrical pulses. If the bad rhythm doesn't stop, the ICD sends an electric shock to the heart. This restores a normal rhythm. The device then goes back to its watchful mode.

Some ICDs can also fix a heart rate that is too slow. The ICD does this without using a shock. It has wires that go inside the heart. It can use these wires to send out electrical pulses to speed up a heart rate that's too slow.

Your doctor will check the ICD regularly to make sure that it's working right and isn't causing any problems. Your doctor will also check the battery.

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